18755955

素因数分解:

$3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15838605

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 243, 359, 387, 405, 645, 1077, 1161, 1215, 1795, 1935, 3231, 3483, 5385, 5805, 9693, 10449, 15437, 16155, 17415, 29079, 46311, 48465, 52245, 77185, 87237, 138933, 145395, 231555, 416799, 436185, 694665, 1250397, 2083995, 3751191, 6251985, 18755955]

約数ペア:

[(1, 18755955), (3, 6251985), (5, 3751191), (9, 2083995), (15, 1250397), (27, 694665), (43, 436185), (45, 416799), (81, 231555), (129, 145395), (135, 138933), (215, 87237), (243, 77185), (359, 52245), (387, 48465), (405, 46311), (645, 29079), (1077, 17415), (1161, 16155), (1215, 15437), (1795, 10449), (1935, 9693), (3231, 5805), (3483, 5385)]